18228602 has 8 divisors (see below), whose sum is σ = 31249056. Its totient is φ = 7812252.

The previous prime is 18228601. The next prime is 18228649. The reversal of 18228602 is 20682281.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (18228601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 651008 + ... + 651035.

It is an arithmetic number, because the mean of its divisors is an integer number (3906132).

Almost surely, 2^18228602 is an apocalyptic number.

18228602 is a deficient number, since it is larger than the sum of its proper divisors (13020454).

18228602 is a wasteful number, since it uses less digits than its factorization.

18228602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1302052.

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 18228602 is about 4269.4966916488. The cubic root of 18228602 is about 263.1789324360.

The spelling of 18228602 in words is "eighteen million, two hundred twenty-eight thousand, six hundred two".